<template>
    <div>
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <el-card>
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
                </el-col>
            </el-row>
            <el-table :data="userList" border stripe>
                <el-table-column type="index"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态">
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180px">
                    <template slot-scope="scope">
                        <el-tooltip class="item" :enterable="false" effect="dark" content="编辑" placement="top-start">
                            <el-button @click="showEditDialog(scope.row.id)" type="primary" icon="el-icon-edit" size="mini"></el-button>
                        </el-tooltip>
                        <el-tooltip class="item" :enterable="false" effect="dark" content="删除" placement="top-start">
                            <el-button @click="removeUserById(scope.row.id)" type="danger" icon="el-icon-delete" size="mini"></el-button>
                        </el-tooltip>
                        <el-tooltip class="item" :enterable="false" effect="dark" content="分配角色" placement="top-start">
                            <el-button @click="setRole(scope.row)" type="warning" icon="el-icon-setting" size="mini"></el-button>
                        </el-tooltip>
                        
                    </template>
                </el-table-column>
            </el-table>
        </el-card>
        <!-- 添加用户对话框 -->
        <el-dialog
            @close="addDialogClose"
            title="添加用户"
            :visible.sync="addDialogVisible"
            width="50%">
            <el-form :model="addForm" :rules="addFormRules" 
            ref="addFormRef" label-width="70px">
                <el-form-item label="用戶名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="电话" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 修改用户对话框 -->
        <el-dialog
            @close="editDialogClose"
            title="修改用户"
            :visible.sync="editDialogVisible"
            width="50%">
            <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
                <el-form-item label="用户名">
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机号" prop="mobile">
                    <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserInfo">确 定</el-button>
            </span>
        </el-dialog>
        <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum"
            :page-sizes="[1, 2, 5, 10]"
            :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total">
        </el-pagination>
        <!-- 分配角色 -->
        <el-dialog
            title="分配角色"
            :visible.sync="setRoleDialogVisible"
            @close="setRoleDialogClosed"
            width="50%">
            <div>
                <p>当前用户: {{this.userInfo.username}}</p>
                <p>当前角色: {{this.userInfo.role_name}}</p>
                <el-select v-model="selectedRoleId" placeholder="请选择">
                    <el-option
                    v-for="item in roleList"
                    :key="item.id"
                    :label="item.roleName"
                    :value="item.id">
                    </el-option>
                </el-select>
            </div>
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>
<script>
export default {
    data() {
        var checkEmail = (rule, value, cb)=>{
            const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
            if(regEmail.test(value)){
                return cb()
            }
            cb(new Error("请输入合法邮箱"))
        }
        var checkMobile = (rule, value, cb)=>{
            const regMobile = /^1[34578]\d{9}$/
            if(regMobile.test(value)){
                return cb()
            }
            cb(new Error("请输入合法手机号"))
        }
        return{
            queryInfo: {
                query: "",
                pagenum: 1,
                pagesize: 2
            },
            userList: [],
            total:0,
            addDialogVisible: false,
            addForm: {},
            addFormRules:{
                username: [
                    { required: true, message: "请输入用户名", trigger:"blur" },
                    { min: 3, max: 10, message: "用户名长度在3-10之间", trigger: "blur" }
                ],
                password: [
                    { required: true, message: "请输入密码", trigger:"blur" },
                    { min: 6, max: 15, message: "用户名长度在6-15之间", trigger: "blur" }
                ],
                email: [
                    { required: true, message: "请输入邮箱", trigger:"blur" },
                    { validator: checkEmail, trigger: "blur" }
                ],
                mobile:[
                    { required: true, message: "请输入手机号", trigger:"blur" },
                    { validator: checkMobile, trigger: "blur" }
                ]
            },
            editDialogVisible: false,
            editForm: {
                username: '',
                email: '',
                mobile: ''
            },
            editFormRules:{
                email: [
                    { required: true, message: "请输入邮箱", trigger:"blur" },
                    { validator: checkEmail, trigger: "blur" }
                ],
                mobile:[
                    { required: true, message: "请输入手机号", trigger:"blur" },
                    { validator: checkMobile, trigger: "blur" }
                ]
            },
            // 控制分配角色对话框的显示与隐藏
            setRoleDialogVisible:false,
            userInfo:{},
            roleList:[],
            selectedRoleId:''
        }
    },
    created() {
        this.getUserList();
    },
    methods:{
        async getUserList(){
            const { data: res } = await this.$http.get('users',{ params: this.queryInfo })
            console.log(res);
            if(res.meta.status !== 200) return this.$message.error("获取用户列表失败")
            this.userList = res.data.users
            this.total = res.data.total
            console.log(this.userList)
        },
        handleSizeChange(newsize) {
            console.log(newsize)
            this.queryInfo.pagesize = newsize
            this.getUserList()
        },
        handleCurrentChange(newpage) {
            this.queryInfo.pagenum = newpage
            this.getUserList()
        },
        // 监听状态的改变
        async userStateChanged(userInfo) {
            console.log(userInfo)
            const { data: res } = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
            if(res.meta.status!==200) {
                // 数据库更新失败 但页面上已经改变 所以给页面上状态重新取反 改回原状态
                userInfo.mg_state = !userInfo.mg_state
                return this.$message.error("更新用户状态失败")
            }
            return this.$message.success("更新用户状态成功")

        },
        addDialogClose() {
            this.$refs.addFormRef.resetFields()
        },
        addUser() {
            this.$refs.addFormRef.validate(async (valid)=>{
                if(!valid)  return
                const { data: res } = await this.$http.post("users", this.addForm )
                if(res.meta.status !== 201 )    return this.$message.error("添加用户失败")
                this.$message.success("添加用户成功")
                this.addDialogVisible = false
                this.getUserList()
            })
        },
        async showEditDialog(id) {
            const { data: res } = await this.$http.get("users/"+ id)
            if(res.meta.status !== 200 )    return this.$message.error("查询用户失败")
            this.editForm = res.data
            this.editDialogVisible = true
        },
        editDialogClose() {
            this.$refs.editFormRef.resetFields()
        },
        editUserInfo() {
            this.$refs.editFormRef.validate(async (valid)=>{
                if(!valid)  return
                // 修改数据的请求
                const {data:res} = await this.$http.put("users/"+this.editForm.id,
                { email:this.editForm.email, mobile:this.editForm.mobile})
                if(res.meta.status !==200) return this.$message.error("修改失败")
                this.getUserList()
                this.editDialogVisible = false
                this.$message.success("修改成功")
            })
        },
        async removeUserById(id){
            console.log(id)
            const confirmResult = await this.$confirm(
                '此操作将永久删除该用户, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
                }
            ).catch(error => error)
            if(confirmResult !== "confirm"){
                return this.$message.info("已取消删除")
            }
            const { data: res } = await this.$http.delete("users/"+id)
            if(res.meta.status!==200)   return this.$message.error('删除失败')
            this.$message.success("删除成功")
            this.getUserList()
        },
        async setRole(userInfo){
            // 获取角色列表
            const { data:res } = await this.$http.get('roles')
            if(res.meta.status!==200)   return this.$message.error("失败")
            this.roleList = res.data
            this.userInfo = userInfo
            
            this.setRoleDialogVisible = true
        },
        async saveRoleInfo(){
            if(!this.selectedRoleId)    return this.$message.error("请选择")

            const { data: res } = await this.$http.put(
                `users/${this.userInfo.id}/role`,
                { rid : this.selectedRoleId }
            )
            if(res.meta.status!==200)   return this.$message.error("失败")
            this.$message.success("分配角色成功")
            this.setRoleDialogVisible = false
            this.getUserList()
        },
        setRoleDialogClosed(){
            this.selectedRoleId = ''
            this.userInfo = {}
        }
    }
}
</script>
<style lang="less" scoped>

</style>